Effect of Organic, Chemical Fertilizations and Plant Stimulants on Eggplant (Solanum melongea L.) Yield and Quality under Conditions of Saline Soil

Two experiments were carried out at a private Farm in Rowad Village belong to Sahl El-Husseiniya, Sharkia Governorate through 2019 and 2020 seasons to determine the impact of organic,chemical fertilizations and spraying with some plant stimulants (yeast extract, potassium silicate and chicken manure tea) on growth traits, yield and its components and chemical ingredients of eggplant(Black Beauty cultivar) grownup under saline soil. The experiments were conducted using split-plots design with three replications. Organic and chemical fertilization treatments were  arranged in the main-plots. The sub-plots were assigned to some plant stimulants (yeast extract, potassium silicate and chicken manure tea) treatments.The obtained results showed that growth, yield and its components and chemical ingredients of  both eggplant leaves and  fruits were significantly affected by the different levels of organic and chemical fertilization in both time of years. The supreme values of these traits were obtained from using 100%of (NP and K)chemical + 0% of (FYM) farmyard manure fertilizers,50%of  NP and K+ 50% of  FYM and75%of  NP and K+ 25% of  FYM fertilizers.Spraying eggplant plants with potassium silicate, chicken manure tea and yeast extract significantly improved growth, yield and its components and chemical in gredients in leaves and fruits through both years. It could be recommended that spraying eggplant plants with yeast extract with using50%of  NP and K+ 50% of  FYM to enhance growth, yield and its components and chemical ingredients under the ecological situation of this research.